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    SubjectRe: NFS client latencies
    Ingo Molnar <mingo@elte.hu> wrote:
    >
    > > No. Coalescing on the client makes tons of sense. The overhead of
    > > sending 8 RPC requests for 4k writes instead of sending 1 RPC request
    > > for a single 32k write is huge: among other things, you end up tying up
    > > 8 RPC slots on the client + 8 nfsd threads on the server instead of just
    > > one of each.
    >
    > yes - coalescing a few pages makes sense, but linearly scanning
    > thousands of entries is entirely pointless.

    If each object has a unique ->wb_index then they could all be placed into a
    radix tree rather than a list. Use the gang-lookup functions to perform
    the sorting.

    -
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